Methane and propane are alkanes.

甲烷和丙烷是烷烃。

《牛津词典》

Pyrolysis of ethane and propane will liberate ethylene, a valuable and basic material for the synthesis of organic chemicals.

乙烷、丙烷是裂解制乙烯的原料，后者是有机合成的基本原料。

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Moreover, the coatings with comparative lower abrasive wear rate can be deposited in the condition of moderate flows of oxygen and propane.

氧气流量、燃气流量适中的条件下制备的涂层磨损率较低。

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The bomb in the sport utility vehicle included propane tanks, gasoline and fireworks.

VOA: special.2010.05.08

"The organization doesn't have to expose its inner-most secrets to pull in somebody from New York and say here's how to hook up some propane tanks."

VOA: standard.2010.05.18

It also sells propane and propane-related products and services to residential, commercial, industrial and agricultural customers.

FORBES: Earnings Preview: Energy Transfer Partners LP

Even though natural-gas prices are slumping, drilling for gas also yields valuable liquids such as butane and propane.

WSJ: Upside: Oil Partnerships Keep Rolling

Oh, and stop burning the meat with cheap briquettes and propane, last time I ordered a steak over there it was burned black on the outside and completely raw and cold on the inside.

FORBES: What Makes Argentine Steak So Renowned?